/*******************************************************************************
 * Copyright © 2000, 2013 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 * IBM Corporation - initial API and implementation
 *
 *******************************************************************************/
package org.eclipse.edt.ide.core.internal.model;

import java.util.ArrayList;

import org.eclipse.edt.ide.core.model.EGLModelException;
import org.eclipse.edt.ide.core.model.IField;
import org.eclipse.edt.ide.core.model.IPart;
import org.eclipse.edt.ide.core.model.IProperty;
import org.eclipse.edt.ide.core.model.IPropertyContainer;
import org.eclipse.edt.ide.core.model.IUseDeclaration;
import org.eclipse.edt.ide.core.model.Signature;


/**
 * @see IField
 */

class SourceUseDeclaration extends Member implements IUseDeclaration {
	protected static final IProperty[] fgEmptyProperties = new IProperty[0];

/**
 * Constructs a handle to the field with the given name in the specified type. 
 */
protected SourceUseDeclaration(IPart parent, String name) {
	super(USE_DECLARATION, parent, name);
}
/**
 * @see EGLElement#getHandleMemento()
 */
protected char getHandleMementoDelimiter() {
	return EGLElement.EGLM_USE;
}
/* (non-Javadoc)
 * @see com.ibm.etools.egl.internal.model.core.IMember#getProperties(java.lang.String)
 */
public IProperty[] getProperties(String key) throws EGLModelException {
	ArrayList list = getChildrenOfType(PROPERTY_BLOCK);
	if (list.isEmpty())
		return fgEmptyProperties;
	else
		return ((IPropertyContainer)list.get(0)).getProperties();
}
/* (non-Javadoc)
 * @see com.ibm.etools.egl.internal.model.core.IField#getPropertiesForIndex(java.lang.String, int)
 */
public IProperty[] getPropertiesForIndex(String key, int index)throws EGLModelException {
	ArrayList list = getChildrenOfType(PROPERTY_BLOCK);
	if (list.isEmpty())
		return fgEmptyProperties;
	else {
		IPropertyContainer props = ((IPropertyContainer)list.get(0)).getPropertiesForIndex(key, index);
		if (props == null)
			return fgEmptyProperties;
		else
			return props.getProperties();
	}
}

/**
 * @see IField
 */
public String getTypeSignature() throws EGLModelException {
	SourceUseElementInfo info = (SourceUseElementInfo) getElementInfo();
	return info.getTypeSignature();
}
/**
 * @private Debugging purposes
 */
protected void toStringInfo(int tab, StringBuffer buffer, Object info) {
	buffer.append(this.tabString(tab));
	if (info == null) {
		buffer.append(getElementName());
		buffer.append(" (not open)"); //$NON-NLS-1$
	} else if (info == NO_INFO) {
		buffer.append(getElementName());
	} else {
		try {
			buffer.append(Signature.toString(this.getTypeSignature()));
			buffer.append(" "); //$NON-NLS-1$
			buffer.append(this.getElementName());
		} catch (EGLModelException e) {
			buffer.append("<EGLModelException in toString of " + getElementName()); //$NON-NLS-1$
		}
	}
}

}